Our Most Classic, Versatile Clog Takes On One Of The Season's Top Fabrics. The Boston Gives You An Easy, Slip-On Design That Feels Instantly Laid-Back In Soft Wool Felt. Complete With Legendary Birkenstock Design Elements, Like A Contoured Cork-Latex Footbed For The Ultimate In Support. Contoured Cork-Latex Footbed Creates Custom Support With Wear Soft,Wool Felt Upper Suede Footbed Lining Helps Keep You Comfortable Eva Sole Is Flexible And Lightweight Adjustable Strap With Metal Pin Buckle “Made In Germany” Quality Stamp On Footbed